Question
The average of 18 numbers is 40, and the average of the
first 9 numbers is 45. Find the average of the remaining 9 numbers.Solution
ATQ, Sum of 18 numbers = 18 × 40 = 720 Sum of first 9 numbers = 9 × 45 = 405 Now, sum of last 9 numbers = (720 – 405) = 315 Therefore, average of last 9 numbers = 315/9 = 35
More Average Questions
√323.89 × (3.20) ÷ 9.02 =?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
23.98% of 624.99 = 19.98% of ? + 14.98% of 639.99
Direction: Please solve the following expression and choose the closest option
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
12, 16, ?, 36, 52, 72
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
(6859.01)1/3 × 10.11 × 14.47 ÷ 20.32 = ? + 45.022
33.33% of 809.891 + 66.66% of 212.91 = ?
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